National Dental Examining Board of Canada (NDEB) Practice Exam 2025 - Free NDEB Practice Questions and Study Guide

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Question: 1 / 400

Is Nitrous oxide explosive and flammable?

Yes

No

Nitrous oxide, commonly known as laughing gas, is not explosive nor flammable. Although it supports combustion, it is only mildly oxidizing and requires a source of fuel to ignite. This means that it can enhance or accelerate a fire but it cannot explode on its own. Therefore, options A and C are incorrect as they suggest that nitrous oxide is both explosive and flammable. Option D is also incorrect as it implies that nitrous oxide is only flammable.

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Only Explosive

Only Flammable

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